KR20200140778A - Roll Joint Member for Surgical instrument - Google Patents

Abstract

The present invention discloses a roll joint member of a surgical instrument, capable of improving the accuracy of a roll operation, which comprises: a guide member including a wire guide part and a wire support part; and a shaft member rotatably coupled to the guide member.

Description

Roll Joint Member for Surgical instrument

The present invention relates to a roll joint member of a surgical instrument, and more particularly, to a roll joint member of a surgical instrument with improved accuracy of a roll operation.

The present invention was carried out with the support of a commercialization-linked technology development project (R&BD).

Medically, surgery refers to curing a disease by cutting, slicing, or manipulating the skin, mucous membranes, and other tissues using medical devices. In particular, open surgery in which the skin at the surgical site is cut open and the internal organs, etc. are treated, formed, or removed, causing problems such as bleeding, side effects, patient pain, and scars. Therefore, in recent years, surgery performed by inserting only a medical device such as a laparoscope, a surgical instrument, a microscope for microsurgery, etc. by forming a predetermined hole in the skin, or a surgery using a robot has been in the spotlight as an alternative.

The surgical instrument is a tool for operating the surgical site by manually manipulating the end tool provided at one end of the shaft that passes through the hole drilled in the skin, or by manipulating the end tool by hand using a predetermined driving unit or using a robot arm. . An end tool provided in a surgical instrument performs rotational motion, gripping, cutting, and the like through a predetermined structure.

The above-described background technology is technical information possessed by the inventors for derivation of the present invention or acquired during the derivation process of the present invention, and is not necessarily known to be publicly known prior to filing the present invention.

US registered patent US9033998B1

An object of the present invention is to provide a roll joint member of a surgical instrument in which the accuracy of a roll operation is improved.

The present invention discloses a roll joint member of a surgical instrument including a guide member including a wire guide part, a wire support part, and a shaft member rotatably coupled to the guide member.

By the roll joint member of the surgical instrument according to the present invention, the accuracy of the roll (roll) operation can be improved.

1A is an exploded perspective view of a roll joint member according to a first embodiment of the present invention.
1B is a perspective view of the roll joint member of FIG. 1A.
1C is a combined perspective view showing a state in which a wire is coupled to the roll joint member of FIG. 1A.
1D is a side cross-sectional view of a guide member of the roll joint member of FIG. 1A.
1E is a front view of a guide member of the roll joint member of FIG. 1A.
2A is an exploded perspective view of a roll joint member according to a second embodiment of the present invention.
Figure 2b is a perspective view of the roll joint member of Figure 2a.
Figure 2c is a perspective view showing a state in which a wire is coupled to the roll joint member of Figure 2a.
2D is a side cross-sectional view of a guide member of the roll joint member of FIG. 2A.
2E is a front view of the guide member of the roll joint member of FIG. 2A.
3A is an exploded perspective view of a roll joint member according to a third embodiment of the present invention.
3B is a perspective view illustrating the roll joint member of FIG. 3A.
3C is a combined perspective view showing a state in which a wire is coupled to the roll joint member of FIG. 3A.
3D is a side cross-sectional view of a guide member of the roll joint member of FIG. 3A.
3E is a front view of the guide member of the roll joint member of FIG. 3A.
4A is an exploded perspective view of a roll joint member according to a fourth embodiment of the present invention.
Figure 4b is a perspective view of the roll joint member of Figure 4a.
Figure 4c is a perspective view showing a state in which the wire is coupled to the roll joint member of Figure 4a.
4D is a side cross-sectional view of a guide member of the roll joint member of FIG. 4A.
4E is a front view of the guide member of the roll joint member of FIG. 4A.
5A is an exploded perspective view of a roll joint member according to a fifth embodiment of the present invention.
5B is a perspective view of the roll joint member of FIG. 5A.
5C is a combined perspective view showing a state in which a wire is coupled to the roll joint member of FIG. 5A.
5D is a side cross-sectional view of a guide member of the roll joint member of FIG. 5A.
5E is a front view of the guide member of the roll joint member of FIG. 5A.
6A is an exploded perspective view of a roll joint member according to a sixth embodiment of the present invention.
6B is a perspective view of the roll joint member of FIG. 6A.
6C is a partial cut-away and combined perspective view of FIG. 6B.
6D is a combined perspective view showing a state in which a wire is coupled to the roll joint member of FIG. 6A.
Figure 6e is a partial cut-away perspective view of Figure 6d.

Since the present invention can apply various transformations and have various embodiments, specific embodiments are illustrated in the drawings and will be described in detail. However, this is not intended to limit the present invention to a specific embodiment, it is to be understood to include all conversions, equivalents, and substitutes included in the spirit and scope of the present invention. In describing the present invention, when it is determined that a detailed description of a related known technology may obscure the subject matter of the present invention, a detailed description thereof will be omitted.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. These terms are used only for the purpose of distinguishing one component from another component.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present application, terms such as "comprise" or "have" are intended to designate the presence of features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, but one or more other features. It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof, does not preclude in advance.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, and in the description with reference to the accompanying drawings, the same or corresponding constituent elements are assigned the same reference numbers, and redundant descriptions thereof will be omitted. To

In addition, in describing various embodiments of the present invention, each embodiment does not have to be independently interpreted or implemented, and technical ideas described in each embodiment may be interpreted or implemented in combination with other embodiments that are individually described. It should be understood as being.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

The surgical instrument 1 provided with a roll joint member according to the present invention includes a roll joint member 100, an end tool 130 and a connection part 103. Here, the connection part 103 is formed in a hollow shaft shape, and one or more wires (to be described later) may be accommodated therein, and the end tool 130 is coupled to one end thereof, and the other end thereof The manipulation unit (not shown) may be coupled to serve to connect the end tool 130 and the manipulation unit (not shown). Here, the manipulation unit (not shown) may be a manipulation unit of a laparoscopic surgical tool or a driving unit of a surgical robot, and in addition, may be various members connected to the end tool 130 to manipulate the end tool 130. .

Hereinafter, various embodiments of the roll joint member 100 formed between the end tool 130 and the connecting portion 103 of the surgical instrument 1 as described above, and guide the roll motion of the end tool 130 will be described in detail. Please describe.

<First embodiment>

1A is an exploded perspective view of a roll joint member according to a first embodiment of the present invention, FIG. 1B is a combined perspective view of the roll joint member of FIG. 1A, and FIG. 1C is a view in which a wire is coupled to the roll joint member of FIG. 1A. Fig. 1D is a side cross-sectional view of the guide member of the roll joint member of Fig. 1A, and Fig. 1E is a front view of the guide member of the roll joint member of Fig. 1A.

1A to 1E, the roll joint member 100 of the surgical instrument according to the first embodiment of the present invention includes a shaft member 110 and a guide member 120. Here, an end tool 130 is coupled to one end of the shaft member 110, and a connection 103 of the surgical instrument 1 is coupled to one end of the guide member 120. On the other hand, the roll wire 140 is formed so as to pass through the guide member 120 in a state where one end thereof is fixedly coupled to the shaft member 110 to face the connection part 103 and the operation part (not shown). Hereinafter, each component will be described in more detail.

The roll wire 140 may include a first roll wire 141 and a second roll wire 142. The first roll wire 141 and the second roll wire 142 may be formed of separate wires, and one end of each wire may be fixedly coupled to the shaft member 110. Alternatively, the first roll wire 141 and the second roll wire 142 may be one wire (connected to each other), and the center point (or connection point) thereof may be fixedly coupled to the shaft member 110. Here, although not shown in the drawings, the roll wire 140 may be fixed to the shaft member 110 by various methods such as holes, grooves, and welding.

The shaft member 110 includes a shaft 111, an end tool receiving portion 113, and an end tool coupling portion 115.

The shaft 111 is formed in a cylindrical shape so as to be inserted into the guide member 120, and thus, the shaft member 110 is moved around the roll axis R while the guide member 120 is fixed. 120) may be formed to be rotatable. In other words, the central axis of the shaft 111 may be the roll axis R.

The end tool accommodating part 113 may be formed in the shape of a pair of parallel plates, and may be formed to extend from the shaft 111 toward the end tool 130. Meanwhile, an end tool coupling part 115 may be further formed at an end of the end tool receiving part 113 in the direction of the end tool 130. Here, the end tool coupling portion 115 may be formed in a hole shape through which a coupling shaft (not shown) can be inserted, and in addition, the shaft member 110 and the end tool 130 can be coupled. It may be formed in a variety of shapes.

The end tool 130 is accommodated in the end tool accommodating part 113, and more specifically, the end tool shaft 133 is accommodated inside the shaft 111, and is coupled to the end tool shaft 133. In a state in which the first jaw 131 and the second jaw 132 are accommodated in the end tool receiving portion 113, the coupling shaft (not shown) is connected to the end tool coupling portion 115 of the end tool receiving portion 113 By sequentially passing through the first jaw 131 and the second jaw 132 and coupled, the shaft member 110 and the end tool 130 may be coupled.

The guide member 120 may include a housing 121 and a guide part 123.

Here, in the roll joint member 100 according to the first embodiment of the present invention, the shaft member 110 and the guide member 120 are formed as separate members, respectively, and in a state in which the guide member 120 is fixed, the shaft It is characterized in that the member 110 is formed to be rotatable with respect to the guide member 120.

That is, in the case of a conventional roll joint member, it is common for the shaft and the guide to be integrally formed, and in this case, since the wire wound around the shaft for the roll operation is also wound on the guide, the shaft and the guide must have a rotationally symmetrical shape. I did it. That is, in order to maintain the shape of the wire wound around the guide irrespective of the rotation of the shaft, the guide structure must be formed to be rotationally symmetric with respect to the shaft axis, and thus the shape of the guide is restricted. Moreover, as the guide rotates, there is a problem that frictional force between the guide and the wire occurs in a direction other than the traveling direction of the wire wound around the guide.

In order to solve such a problem, in the roll joint member 100 according to the first embodiment of the present invention, the shaft member 110 and the guide member 120 are formed as separate members, respectively, and the guide member 120 is In a fixed state, the shaft member 110 is characterized in that it is formed to be rotatable with respect to the guide member 120. This will be described in more detail later.

The housing 121 is formed in a hollow hollow shape, a guide part 123 may be formed at one end, and a connection part 103 of the surgical instrument 1 may be coupled to the other end of the housing 121 have.

Meanwhile, one or more wire holes 122 may be formed in the housing 121. The wire hole 122 may be formed to allow the roll wire 140 to pass therethrough, and the roll wire 140 may serve to connect the end tool 130 and the operation unit (not shown). Although only the wire hole 122 through which the roll wire 140 passes is shown in the drawing, the spirit of the present invention is not limited thereto, and additional wires for other operations of the end tool 130 penetrate the housing 121. One or more wire holes may be further formed.

The guide part 123 may be formed in a hollow hollow shape. Accordingly, the shaft hole 125 may be formed through the housing 121 and the guide part 123, and the shaft 111 of the shaft member 110 may be rotatably coupled thereto.

The guide part 123 may include a wire guide part 123a and a wire support part 123c.

The wire guide part 123a serves to guide the path of the roll wire 140 passing through the wire hole 122.

The wire support part 123c may serve to support at least a portion of the roll wire 140. That is, the wire support part 123c is wound with the wire guide part 123a while changing the direction in which the roll wire 140 wound around the shaft member 110 is wound, so that the roll wire 140 is more stably the shaft member. It may serve to support the roll wire 140 so that it can be wound around (110).

1D and 1E, the roll joint member 100 according to the first embodiment of the present invention is a wire guide part 123a and a wire support part 123c when viewed from a plane perpendicular to the roll axis R. It is characterized in that the upper and lower (or left and right depending on the rotation position) based on the roll axis (R) is formed in an asymmetric shape. In other words, as seen in FIG. 1E, the upper and lower sides of the guide member 120 are formed to be asymmetrical to each other based on the horizontal line including the roll axis R, and thus may be formed to have different cross-sections. That is, since the shaft member 110 and the guide member 120 are formed as separate members separated from each other, the guide member 120 does not rotate even if the shaft member 110 rotates, so the guide does not rotate. The member 120 may be formed in an asymmetric shape.

Here, the wire guide part 123a serves to guide the path of the roll wire 140. The wire guide part 123a may be formed to include two inclined surfaces forming a predetermined angle from each other. The roll wire 140 having one end wound around the shaft member 110 is guided to the wire hole 122 along the slope of the wire guide part 123a. At this time, the roll wire 140 comes into close contact with the surface of the wire guide part 123a by the tension applied to the roll wire 140. However, the wire guide part 123a is shown to be an inclined surface when viewed from a plane perpendicular to the roll axis R, but may be formed as a curved surface having a predetermined curvature as a whole.

On the other hand, the wire support part 123c is formed in an approximately cylindrical part, for example, in a hemispherical shape, and may serve to support at least a part of the part wound around the shaft member 110 in the roll wire 140. . That is, the wire support part 123c may be formed in an arc shape having a predetermined central angle when viewed from a plane perpendicular to the roll axis R. In this way, the wire support part 123c is provided to support the roll wire 140 so that the roll wire 140 can be wound on the shaft member 110 more stably, thereby obtaining an effect of improving the linearity or stability of the roll motion. I can. In addition, during the roll movement, the guide member 120 is fixed without rotating, so that the roll wire 140 moves forward and backward only in the path wound around the guide member 120, so that the roll wire 140 and the guide An effect of minimizing the frictional force between the members 120 can be obtained. That is, since the guide member 120 does not rotate in a direction different from the direction in which the roll wire 140 moves forward or backward, additional frictional force is not generated.

As such, the shaft member 110 and the guide member 120 are formed as separate members separated from each other, so that the shape of the guide member 120 can be formed asymmetrically regardless of axial rotational symmetry. Accordingly, it is possible to manufacture the shape of the guide member 120 according to the optimal path of the roll wire 140 suitable for the roll motion of the surgical instrument 1. In addition, in the form in which the roll wire 140 wound around the shaft member 110 is wound with the guide member 120 by changing the winding direction, by forming the wire support part 123c, the roll wire 140 is more stable. It may be supported so as to be wound around the shaft member 110. In addition, with such a configuration, rotation of the shaft member 110 due to the roll motion may not affect the shape of the roll wire 140 wound around the guide member 120.

Here, the driving principle of the roll operation using the roll wire 140 is as follows.

When the first roll wire 141 and the second roll wire 142 are separate wires, one end of each wire, or when the first roll wire 141 and the second roll wire 142 are one wire In the state where the center point (or connection point) is fixed to the shaft member 110, the first roll wire 141 and the second roll wire 142 are wound around the shaft member 110, and the first roll wire 141 and When a tension difference is applied to both sides of the second roll wire 142 (that is, when one is pulled), the first roll wire 141 and the second roll wire 142 are wound or unwound to rotate the shaft member 110. do.

At this time, one or more wire holes 122 may be formed in the guide member 120 to guide the path of the roll wire 140. Accordingly, the roll wire 140 penetrates the wire hole 122 of the guide member 120 while being fixed and wound on the shaft member 110 and extends in a direction opposite to the direction in which the end tool 130 is formed. At this time, the guide portion 123 of the guide member 120 guides the direction of the roll wire 140 toward the wire hole 122 while being fixed and wound on the shaft member 110, while the roll wire 140 It serves as a form wound around the shaft member 110.

That is, the wire guide part 123a includes two inclined surfaces forming a predetermined angle from each other, and the roll wire 140 is in close contact with the surface of the wire guide part 123a by tension applied to the roll wire 140. do. In addition, the wire support part 123c serves to support at least a portion of a portion of the roll wire 140 wound around the shaft member 110.

According to the present invention, since the shaft member 110 and the guide member 120 are formed as separate members separated from each other, the guide member 120 does not rotate even if the shaft member 110 rotates, The guide member 120 that does not rotate can be formed in an asymmetric shape, so that the degree of freedom in shape design can be greatly improved. In addition, by enabling an asymmetric shape as described above, a wire guide portion 123a to which a wire can be closely coupled is formed on one side to guide the path of the roll wire 140 more stably, and a wire support portion 123c on the other side. ) To support the shape of the roll wire 140 wound around the shaft member 110, it is possible to obtain an effect of improving the linearity or stability of the roll movement. In addition, since the guide member 120 is fixed without rotating during the roll movement of the shaft member 110, frictional force with respect to the roll wire 140 other than the forward and backward movement of the roll wire 140 is not generated. Does not.

<Second Example>

Hereinafter, a roll joint member 200 of a surgical instrument according to a second embodiment of the present invention will be described. Here, the roll joint member 200 of the surgical instrument according to the second embodiment of the present invention is compared to the roll joint member of the surgical instrument according to the first embodiment of the present invention (see 100 in FIG. 1A) described above. The configuration of the guide member 220 is characteristically different. Hereinafter, the configuration of the guide member 220 will be described.

2A is an exploded perspective view of a roll joint member according to a second embodiment of the present invention, FIG. 2B is a perspective view of the roll joint member of FIG. 2A, and FIG. 2C is a view in which a wire is coupled to the roll joint member of FIG. 2A. Fig. 2D is a side cross-sectional view of the guide member of the roll joint member of Fig. 2A, and Fig. 2E is a front view of the guide member of the roll joint member of Fig. 2A.

2A to 2E, the roll joint member 200 of the surgical instrument according to the second embodiment of the present invention includes a shaft member 210 and a guide member 220. Here, an end tool 230 is coupled to one end of the shaft member 210, and a connection part of the surgical instrument 1 (see 103 in FIG. 1) is coupled to one end of the guide member 220. On the other hand, the roll wire 240 is formed so as to pass through the guide member 220 in a state where one end thereof is fixedly coupled to the shaft member 210 to face a connection portion (see 103 in FIG. 1) and an operation portion (not shown). . Hereinafter, the guide member 220 will be described in more detail.

The guide member 220 may include a housing 221 and a guide part 223.

The guide part 223 may be formed in a hollow hollow shape. Accordingly, the shaft hole 225 may be formed through the housing 221 and the guide part 223, and the shaft 211 of the shaft member 210 may be rotatably coupled thereto.

The guide part 223 may include a wire guide part 223a and a wire support part 223c.

The wire guide part 223a serves to guide the path of the roll wire 240 passing through the wire hole 222.

The wire support part 223c may serve to support at least a portion of the roll wire 240. That is, the wire support part 223c is wound with the wire guide part 223a while changing the direction in which the roll wire 240 wound around the shaft member 210 is wound, so that the roll wire 240 is more stably the shaft member. It may serve to support the roll wire 240 so that it can be wound around 210.

2D and 2E, in the roll joint member 200 according to the second embodiment of the present invention, when viewed in a plane perpendicular to the roll axis, the wire guide part 223a and the wire support part 223c are It is characterized in that the top and bottom (or left and right depending on the rotation position) are formed in an asymmetrical shape based on (R). That is, since the shaft member 210 and the guide member 220 are formed as separate members separated from each other, the guide member 220 does not rotate even if the shaft member 210 rotates, so the guide does not rotate. The member 220 may be formed in an asymmetric shape.

Here, the wire guide part 223a serves to guide the path of the roll wire 240. Such a wire guide portion 223a may be formed to include a plane formed substantially flat. The roll wire 240 having one end wound around the shaft member 210 is guided to the wire hole 222 along the plane of the wire guide part 223a. At this time, the roll wire 240 comes into close contact with the surface of the wire guide portion 223a by the tension applied to the roll wire 240. However, the wire guide part 223a is shown to be a flat plane when viewed from a plane perpendicular to the roll axis, but may be formed as a free curved surface of various shapes.

On the other hand, the wire support part 223c is formed in a substantially cylindrical shape, for example, in a hemispherical shape, and may serve to support at least a portion of a portion wound around the shaft member 210 in the roll wire 240. . In this way, by providing the wire support part (223c) to support the roll wire (240) so that the roll wire (240) can be wound on the shaft member (210) more stably, the effect of improving the linearity or stability of the roll movement is obtained. I can. In addition, during the roll movement, the guide member 220 is fixed without rotating, so that the roll wire 240 moves forward and backward only in the path wound around the guide member 220, so that the roll wire 240 and the guide An effect of minimizing the frictional force between the members 220 can be obtained. That is, since the guide member 220 does not rotate in a direction different from the direction in which the roll wire 240 moves forward or backward, additional frictional force does not occur.

As such, the shaft member 210 and the guide member 220 are formed as separate members separated from each other, so that the shape of the guide member 220 can be formed asymmetrically regardless of axial symmetry. Therefore, it is possible to manufacture the shape of the guide member 220 in accordance with the optimal path of the roll wire 240 to match the roll motion of the surgical instrument. In addition, in a form in which the roll wire 240 wound around the shaft member 210 is wound with the guide member 220 by changing the winding direction, by forming the wire support portion 223c, the roll wire 240 is more stable. It may be supported so as to be wound around the shaft member 210. In addition, with such a configuration, rotation of the shaft member 210 due to the roll motion may not affect the shape of the roll wire 240 wound around the guide member 220.

<Third embodiment>

Hereinafter, a roll joint member 300 of a surgical instrument according to a third embodiment of the present invention will be described. Here, the roll joint member 300 of the surgical instrument according to the third embodiment of the present invention is compared to the roll joint member of the surgical instrument according to the first embodiment of the present invention (see 100 in FIG. 1A) described above. The configuration of the guide member 320 is characteristically different. Hereinafter, the configuration of the guide member 320 will be described.

3A is an exploded perspective view of a roll joint member according to a second embodiment of the present invention, FIG. 3B is a combined perspective view of the roll joint member of FIG. 3A, and FIG. 3C is a view in which a wire is coupled to the roll joint member of FIG. 3A. Fig. 3D is a side cross-sectional view of the guide member of the roll joint member of Fig. 3A, and Fig. 3E is a front view of the guide member of the roll joint member of Fig. 3A.

3A to 3E, the roll joint member 300 of the surgical instrument according to the third embodiment of the present invention includes a shaft member 310 and a guide member 320. Here, an end tool 330 is coupled to one end of the shaft member 310, and a connection part of the surgical instrument 1 (see 103 of FIG. 1) is coupled to one end of the guide member 320. On the other hand, the roll wire 340 is formed so as to pass through the guide member 320 in a state where one end thereof is fixedly coupled to the shaft member 310 to face a connection portion (see 103 in FIG. 1) and an operation portion (not shown). . Hereinafter, the guide member 320 will be described in more detail.

The guide member 320 may include a housing 321 and a guide portion 323.

The guide part 323 may be formed in a hollow hollow shape. Accordingly, the shaft hole 325 may be formed through the housing 321 and the guide part 323, and the shaft 311 of the shaft member 310 may be rotatably coupled thereto.

The guide part 323 may include a wire guide part 323a and a wire support part 323c.

The wire guide part 323a serves to guide the path of the roll wire 340 passing through the wire hole 322.

The wire support part 323c may serve to support at least a portion of the roll wire 340. That is, the wire support portion 323c is wound with the wire guide portion 323a while changing the direction in which the roll wire 340 wound around the shaft member 310 is wound, so that the roll wire 340 is more stably the shaft member. It may serve to support the roll wire 340 so that it can be wound around 310.

3D and 3E, the roll joint member 300 according to the third embodiment of the present invention is a wire guide part 323a and a wire support part 323c when viewed in a plane perpendicular to the roll axis. It is characterized in that the top and bottom (or left and right depending on the rotation position) are formed in an asymmetrical shape based on (R). That is, the shaft member 310 and the guide member 320 are formed as separate members separated from each other, so that even if the shaft member 310 rotates, the guide member 320 does not rotate. The member 320 may be formed in an asymmetric shape.

Here, the wire guide part 323a serves to guide the path of the roll wire 340. Such a wire guide part 323a may be formed in a type of channel shape. That is, it is formed in a shape recessed from the cylindrical shape to the inside, it may be formed to form a predetermined curved surface from the inside along the path of the wire. In other words, when viewed from the cross-section, a groove that is depressed to a certain extent in the roll axis direction is formed, and at this time, the surface forming the groove is formed in a curved shape having an approximately predetermined curvature, thereby forming the wire guide part 323a. have. In addition, the roll wire 340 having one end wound around the shaft member 310 is guided to the wire hole 322 along the curved surface of the wire guide portion 323a. At this time, the roll wire 340 is in close contact with the surface of the wire guide portion 323a by the tension applied to the roll wire 340.

On the other hand, the wire support part 323c is formed in an approximately arc shape under the wire guide part 323a, and can serve to support at least a portion of the portion wound around the shaft member 310 in the roll wire 340. have. As such, by providing the wire support 323c, supporting the roll wire 340 so that the roll wire 340 can be wound on the shaft member 310 more stably, the linearity or stability of the roll motion is improved. I can. In addition, during the roll movement, the guide member 320 is fixed without rotating, so that the roll wire 340 moves forward and backward only in the path wound around the guide member 320, so that the roll wire 340 and the guide An effect of minimizing the frictional force between the members 320 may be obtained. That is, since the guide member 320 does not rotate in a direction different from the direction in which the roll wire 340 moves forward or backward, additional frictional force does not occur.

At this time, although not shown in the drawing, not only the lower side of the wire support part 323c but also the upper side of the arc shape may also serve to support the wire. That is, in FIG. 3C, since the shaft member 310 is in the default state, the upper arc supporting the roll wire 340 is not shown. However, a roll operation is performed on the shaft and the wire hole 322 If) is placed on the side or the lower side, the roll wire 340 may be supported by the upper arc shape.

As such, the shaft member 310 and the guide member 320 are formed as separate members separated from each other, so that the shape of the guide member 320 can be formed asymmetrically regardless of axial symmetry. Accordingly, it is possible to manufacture the shape of the guide member 320 in accordance with the optimal path of the roll wire 340 to match the roll motion of the surgical instrument. In addition, in the form in which the roll wire 340 wound around the shaft member 310 is wound with the guide member 320 by changing the winding direction, by forming the wire support portion 323c, the roll wire 340 is more stable. It may be supported so as to be wound around the shaft member 310. In addition, with such a configuration, rotation of the shaft member 310 due to the roll motion may not affect the shape of the roll wire 340 wound around the guide member 320.

<The fourth embodiment>

Hereinafter, a roll joint member 400 of a surgical instrument according to a fourth embodiment of the present invention will be described. Here, the roll joint member 400 of the surgical instrument according to the fourth embodiment of the present invention is compared to the roll joint member of the surgical instrument according to the first embodiment of the present invention (see 100 in FIG. 1A) described above. The configuration of the guide member 420 is characteristically different. Hereinafter, the configuration of the guide member 420 will be mainly described.

4A is an exploded perspective view of a roll joint member according to a fourth embodiment of the present invention, FIG. 4B is a combined perspective view of the roll joint member of FIG. 4A, and FIG. 4C is a view in which a wire is coupled to the roll joint member of FIG. 4A. Fig. 4D is a side cross-sectional view of the guide member of the roll joint member of Fig. 4A, and Fig. 4E is a front view of the guide member of the roll joint member of Fig. 4A.

4A to 4E, the roll joint member 400 of the surgical instrument according to the fourth embodiment of the present invention includes a shaft member 410 and a guide member 420. Here, an end tool 430 is coupled to one end of the shaft member 410, and a connection portion of the surgical instrument 1 (see 103 in FIG. 1) is coupled to one end of the guide member 420. On the other hand, the roll wire 440 is formed so as to pass through the guide member 420 in a state where one end thereof is fixedly coupled to the shaft member 410 to face a connection portion (see 103 in FIG. 1) and an operation portion (not shown). . Hereinafter, the guide member 420 will be described in more detail.

The guide member 420 may include a housing 421 and a guide part 423.

The guide part 423 may be formed in a hollow hollow shape. Accordingly, the shaft hole 425 may be formed through the housing 421 and the guide part 423, and the shaft 411 of the shaft member 410 may be rotatably coupled thereto.

The guide part 423 may include a wire guide part 423a and a wire support part 423c.

The wire guide part 423a serves to guide the path of the roll wire 440 passing through the wire hole 422.

The wire support part 423c may serve to support at least a portion of the roll wire 440. That is, the wire support part 423c is wound with the wire guide part 423a while changing the winding direction of the roll wire 440 wound around the shaft member 410, so that the roll wire 440 is more stably the shaft member. It may serve to support the roll wire 440 so that it can be wound around 410.

4D and 4E, when viewed in a plane perpendicular to the roll axis, the roll joint member 400 according to the second embodiment of the present invention includes a wire guide part 423a and a wire support part 423c. It is characterized in that the top and bottom (or left and right depending on the rotation position) are formed in an asymmetrical shape based on (R). That is, since the shaft member 410 and the guide member 420 are formed as separate members separated from each other, the guide member 420 does not rotate even if the shaft member 410 rotates, so the guide does not rotate. The member 420 may be formed in an asymmetric shape.

Here, the wire guide part 423a serves to guide the path of the roll wire 440. The wire guide portion 423a may be formed in a concave shape having a predetermined curvature and concavely. The roll wire 440 whose one end is wound around the shaft member 410 is guided to the wire hole 422 along the concave portion of the wire guide part 423a. At this time, the roll wire 440 is in close contact with the surface of the wire guide portion 423a by the tension applied to the roll wire 440.

On the other hand, the wire support part 423c is formed in an approximately arc or hemispherical shape, and may serve to support at least a portion of a portion of the roll wire 440 wound around the shaft member 410. As such, by providing the wire support part 423c, by supporting the roll wire 440 so that the roll wire 440 can be wound on the shaft member 410 more stably, the linearity or stability of the roll motion is improved. I can. In addition, during the roll movement, the guide member 420 is fixed without rotating, so that the roll wire 440 moves forward and backward only in the path wound around the guide member 420, so that the roll wire 440 and the guide An effect of minimizing the frictional force between the members 420 can be obtained. That is, since the guide member 420 does not rotate in a direction different from the direction in which the roll wire 440 moves forward or backward, additional frictional force is not generated.

As such, the shaft member 410 and the guide member 420 are formed as separate members separated from each other, so that the shape of the guide member 420 can be formed asymmetrically regardless of axial symmetry. Accordingly, it is possible to manufacture the shape of the guide member 420 in accordance with the optimal path of the roll wire 440 that fits the roll motion of the surgical instrument. In addition, in a form in which the roll wire 440 wound around the shaft member 410 is wound with the guide member 420 by changing the winding direction, by forming the wire support portion 423c, the roll wire 440 is more stable. It may be supported so as to be wound around the shaft member 410. In addition, with such a configuration, rotation of the shaft member 410 due to the roll motion may not affect the shape of the roll wire 440 wound around the guide member 420.

<Fifth embodiment>

Hereinafter, a roll joint member 500 of a surgical instrument according to a fifth embodiment of the present invention will be described. Here, the roll joint member 500 of the surgical instrument according to the fifth embodiment of the present invention is compared to the roll joint member of the surgical instrument according to the first embodiment of the present invention (see 100 in FIG. 1A) described above. The configuration of the guide member 520 is characteristically different. Hereinafter, the configuration of the guide member 520 will be mainly described.

5A is an exploded perspective view of a roll joint member according to a second embodiment of the present invention, FIG. 5B is a perspective view of the roll joint member of FIG. 5A, and FIG. 5C is a view in which a wire is coupled to the roll joint member of FIG. 5A. Fig. 5D is a side cross-sectional view of the guide member of the roll joint member of Fig. 5A, and Fig. 5E is a front view of the guide member of the roll joint member of Fig. 5A.

5A to 5E, the roll joint member 500 of the surgical instrument according to the fifth embodiment of the present invention includes a shaft member 510 and a guide member 520. Here, an end tool 530 is coupled to one end of the shaft member 510, and a connection part of the surgical instrument 1 (see 103 in FIG. 1) is coupled to one end of the guide member 520. On the other hand, the roll wire 540 is formed so as to pass through the guide member 520 in a state where one end thereof is fixedly coupled to the shaft member 510 to face a connection portion (see 103 in FIG. 1) and an operation portion (not shown) . Hereinafter, the guide member 520 will be described in more detail.

The guide member 520 may include a housing 521 and a guide part 523.

The guide part 523 may be formed in a hollow hollow shape. Accordingly, the shaft hole 525 may be formed through the housing 521 and the guide part 523, and the shaft 511 of the shaft member 510 may be rotatably coupled thereto.

The guide part 523 may include a wire guide part 523a and a wire support part 523c.

The wire guide part 523a serves to guide the path of the roll wire 540 passing through the wire hole 522.

The wire support part 523c may serve to support at least a portion of the roll wire 540. That is, the wire support part 423c is wound with the wire guide part 423a while changing the winding direction of the roll wire 440 wound around the shaft member 410, so that the roll wire 440 is more stably the shaft member. It may serve to support the roll wire 440 so that it can be wound around 410.

5D and 5E, the roll joint member 500 according to the fifth embodiment of the present invention is a wire guide part 523a and a wire support part 523c when viewed in a plane perpendicular to the roll axis R. It is characterized in that the upper and lower (or left and right depending on the rotation position) based on the roll axis (R) is formed in an asymmetric shape. That is, since the shaft member 510 and the guide member 520 are formed as separate members separated from each other, the guide member 520 does not rotate even if the shaft member 510 rotates, so the guide does not rotate. The member 520 may be formed in an asymmetric shape.

Here, the wire guide part 523a serves to guide the path of the roll wire 540. The wire guide part 523a may be formed in a form in which a part of the cylindrical shape is opened or cut. That is, a part of the cylindrical shape is cut in the roll axis direction to form a groove, and the roll wire 540 is guided to the wire hole 522 along the cut part. At this time, the roll wire 540 comes into close contact with the surface of the wire guide portion 523a by the tension applied to the roll wire 540.

On the other hand, the wire support portion 523c is formed in an approximately arc or hemispherical shape, and may serve to support at least a portion of a portion of the roll wire 540 wound around the shaft member 510. In this way, by providing the wire support part 523c to support the roll wire 540 so that the roll wire 540 can be wound on the shaft member 510 more stably, the linearity or stability of the roll motion is improved. I can. In addition, during the roll movement, the guide member 520 is fixed without rotating, so that the roll wire 540 moves forward and backward only in the path wound around the guide member 520, so that the roll wire 540 and the guide An effect of minimizing the frictional force between the members 520 can be obtained. That is, since the guide member 520 does not rotate in a direction different from the direction in which the roll wire 540 moves forward or backward, additional frictional force is not generated.

As such, the shaft member 510 and the guide member 520 are formed as separate members separated from each other, so that the shape of the guide member 520 can be formed asymmetrically regardless of axial symmetry. Accordingly, it is possible to manufacture the shape of the guide member 520 in accordance with the optimal path of the roll wire 540 for the roll motion of the surgical instrument. In addition, in the form in which the roll wire 540 wound around the shaft member 510 is wound with the guide member 520 by changing the winding direction, by forming the wire support portion 523c, the roll wire 540 is more stable. It can be supported so as to be wound around the shaft member 510. In addition, with such a configuration, rotation of the shaft member 510 due to the roll motion may not affect the shape of the roll wire 540 wound around the guide member 520.

<The sixth embodiment>

Hereinafter, a roll joint member 600 of a surgical instrument according to a sixth embodiment of the present invention will be described. Here, the roll joint member 600 of the surgical instrument according to the sixth embodiment of the present invention is compared to the roll joint member of the surgical instrument according to the first embodiment of the present invention (see 100 in FIG. 1A) described above. The configuration of the guide member 620 is characteristically different. Hereinafter, the configuration of the guide member 620 will be mainly described.

6A is an exploded perspective view of a roll joint member according to a sixth embodiment of the present invention, FIG. 6B is a combined perspective view of the roll joint member of FIG. 6A, FIG. 6C is a partially cut-away perspective view of FIG. 6B, and FIG. 6D is It is a combined perspective view showing a state in which the wire is coupled to the roll joint member of 6A, and FIG. 6E is a partially cutaway combined perspective view of FIG. 6D.

6A to 6E, the roll joint member 600 of the surgical instrument according to the sixth embodiment of the present invention includes a shaft member 610, a first guide member 620, and a second guide member 650. Includes. Here, an end tool 630 is coupled to one end of the shaft member 610, and a connection part (see 103 in FIG. 1) of the surgical instrument 1 is coupled to one end of the first guide member 620 have. Meanwhile, the roll wire 640 passes through the first guide member 620 in a state where one end thereof is fixedly coupled to the shaft member 610 and is directed toward the connection part (see 103 in FIG. 1) and the operation part (not shown). Is formed.

Here, in the roll joint member 600 of the surgical instrument according to the sixth embodiment of the present invention, the guide member is formed by being separated into two members of the first guide member 620 and the second guide member 650, It is characterized in that the first roll wire 641 and the second roll wire 642 wound together are prevented from interfering with each other. Hereinafter, the first guide member 620 and the second guide member 650 will be described in more detail.

The first guide member 620 may include a housing 621 and a guide part 623.

Here, the first guide member 620 is substantially the same as the guide member (see 120 in FIG. 1A) of the first embodiment, except that the coupling portion is formed so that the second guide member 650 can be coupled, so a detailed description thereof will be omitted. . Of course, the guide member of other embodiments may be applied as the first guide member.

The second guide member 650 may be formed in a hollow hollow shape. Here, the shaft 611 of the shaft member 610 may be coupled to be rotatable. In addition, the second guide member 650 may be fitted to the first guide member 620. Here, the second guide member 650 may be viewed in a form similar to that of the first guide member 620 without a housing.

The second guide member 650 may include a wire guide portion 653a and a wire support portion 653c. The wire guide part 653a serves to guide the path of the roll wire 640 passing through the wire hole. The wire support part 653c may serve to support at least a portion of the roll wire 640. That is, the wire support part 653c is wound with the wire guide part 653a while changing the direction in which the roll wire 640 wound around the shaft member 610 is wound, so that the roll wire 640 is more stably the shaft member. It may serve to support the roll wire 640 so that it can be wound around 610.

Here, the first guide member 620 and the second guide member 650 are formed to be separated from each other. In addition, both the first roll wire 641 and the second roll wire 642 are coupled to the shaft member 610. The difference between the sixth embodiment of the present invention and the previous embodiments is that the two wire coupling holes 611a formed in the shaft member 610 are formed along the roll axis rather than crossing the roll axis. In addition, the second roll wire 642 may be supported and guided by the guide member 653 of the first guide member 620.

Here, the first roll wire 641 and the second roll wire 642 may be formed as separate wires, and one end of each wire may be fixedly coupled to the shaft member 610. Alternatively, the first roll wire 641 and the second roll wire 642 may be one wire (connected to each other), and the center point (or connection point) thereof may be fixedly coupled to the shaft member 610.

With such a configuration, the first roll wire 641 and the second roll wire 642 are formed so as not to contact/interference with each other, so that the roll operation can be more stably and reliably implemented.

The specific implementations described in the present invention are examples and do not limit the scope of the present invention in any way. For brevity of the specification, descriptions of conventional electronic configurations, control systems, software, and other functional aspects of the systems may be omitted. In addition, the connection or connection members of the lines between the components shown in the drawings exemplarily represent functional connections and/or physical or circuit connections, and in an actual device, various functional connections that can be replaced or additionally It may be referred to as a connection, or circuit connections. In addition, if there is no specific mention such as "essential", "important", etc., it may not be an essential component for the application of the present invention.

In the specification of the present invention (especially in the claims), the use of the term "above" and a similar reference term may correspond to both the singular and the plural. In addition, when a range is described in the present invention, the invention to which an individual value falling within the range is applied (unless otherwise stated), and each individual value constituting the range is described in the detailed description of the invention. Same as Finally, unless explicitly stated or contradictory to the steps constituting the method according to the present invention, the steps may be performed in an appropriate order. The present invention is not necessarily limited according to the order of description of the steps. The use of all examples or illustrative terms (for example, etc.) in the present invention is merely for describing the present invention in detail, and the scope of the present invention is limited by the above examples or illustrative terms unless limited by the claims. It does not become. In addition, those skilled in the art can recognize that various modifications, combinations, and changes may be configured according to design conditions and factors within the scope of the appended claims or their equivalents.

The embodiment according to the present invention described above may be implemented in the form of a computer program that can be executed through various components on a computer, and such a computer program may be recorded in a computer-readable medium. In this case, the medium may continue to store a program executable by a computer, or may be stored for execution or download. In addition, the medium may be a variety of recording means or storage means in a form in which a single piece of hardware or several pieces of hardware are combined. The medium is not limited to a medium directly connected to a computer system, but may be distributed on a network. Examples of media include magnetic media such as hard disks, floppy disks, and magnetic tapes, optical recording media such as CD-ROMs and DVDs, magnetic-optical media such as floptical disks, and And a ROM, RAM, flash memory, and the like, and may be configured to store program instructions. In addition, examples of other media include an app store that distributes applications, a site that supplies or distributes various software, and a recording medium or storage medium managed by a server.

In the above, the present invention has been described by specific matters such as specific elements and limited embodiments and drawings, but this is provided only to help a more general understanding of the present invention, and the present invention is not limited to the above embodiments. Anyone with ordinary knowledge in the technical field to which the invention belongs can make various modifications and changes from these descriptions.

Accordingly, the spirit of the present invention is limited to the above-described embodiments and should not be defined, and all ranges equivalent to or equivalently changed from the claims to be described later as well as the claims to be described later are the scope of the spirit of the present invention. It will be said to belong to.

100: roll joint member of surgical instrument
110: shaft member 120: guide member

Claims (11)

A shaft member including a shaft to which at least one roll wire is coupled and is formed to be rotatable about a roll axis (R) according to the movement of the roll wire; And
Includes; a guide member rotatably coupled to the shaft member about the roll shaft (R) on one side,
The guide member,
A wire hole through which the roll wire passes;
A wire guide formed to contact at least a portion of the roll wire to guide the entry path of the roll wire into the wire hole so that the entry direction and the exit direction of the roll wire into the wire hole coincide with the extension direction of the shaft. Wealth,
A wire support portion for supporting at least a portion of the roll wire wound around the shaft member,
The shaft member and the guide member are each formed as a separate member and coupled,
The shaft member rotates with respect to the guide member while the guide member is fixed,
When viewed in a plane perpendicular to the roll axis (R), the wire guide portion and the wire support portion are formed asymmetrically and formed to have different shapes from each other, a roll joint member of a surgical instrument. The method of claim 1,
Roll joint of a surgical instrument, characterized in that the radius of the wire support portion is formed larger than the radius of the shaft so that the movement of the roll wire in the roll axis direction is limited while the roll wire is wound around the shaft absence. The method of claim 1,
In a state where the shaft member is fitted into the guide member, the shaft member and the wire support portion of the guide member are formed to be stepped,
The roll joint member of a surgical instrument, characterized in that after at least a portion of the roll wire is wound around the shaft, while being supported by the wire support in the stepped region, through the wire guide part and into the wire hole. The method of claim 1,
The guide member,
A housing formed in a hollow hollow shape and coupled to a connection part of a surgical instrument at one end,
A roll joint member of a surgical instrument formed at the other end of the housing and including a guide portion including the wire guide portion and the wire support portion. The method of claim 4,
The wire guide portion, characterized in that it serves to guide the path of the roll wire passing through the wire hole, the roll joint member of the surgical instrument. The method of claim 1,
The wire guide portion is formed to include two inclined surfaces that form a predetermined angle to each other when viewed from a plane perpendicular to the roll axis (R),
The wire support portion, characterized in that formed in an arc shape having a predetermined central angle when viewed in a plane perpendicular to the roll axis (R), the roll joint member of the surgical instrument. The method of claim 1,
The wire guide portion is formed including a flat plane when viewed from a plane perpendicular to the roll axis (R),
The wire support portion, characterized in that formed in an arc shape having a predetermined central angle when viewed in a plane perpendicular to the roll axis (R), the roll joint member of the surgical instrument. The method of claim 1,
The wire guide portion is formed in a form recessed from the guide portion,
A roll joint member of a surgical instrument, characterized in that the wire guide portion is formed along the recessed surface. The method of claim 1,
The wire guide portion is formed to be concavely recessed with a predetermined curvature when viewed from a plane perpendicular to the roll axis (R),
The wire support portion, characterized in that formed in an arc shape having a predetermined central angle when viewed in a plane perpendicular to the roll axis (R), the roll joint member of the surgical instrument. The method of claim 1,
The wire guide part is formed by opening or cutting a part of the guide part,
The wire support portion, characterized in that formed in an arc shape having a predetermined central angle when viewed in a plane perpendicular to the roll axis (R), the roll joint member of the surgical instrument. The method of claim 1,
The guide member,
A first guide member to which a connection part is coupled to one end and
And a second guide member to which the shaft member is coupled to one side and the first guide member to the other side,
The first roll wire of the roll wire is supported and guided by the second guide member, and the second roll wire of the roll wire is supported and guided by the first guide member. Roll joint member.

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